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Fatigue in a medical context is used to cover experiences of low energy that are not caused by normal life. [2] [3]A 2021 review proposed a definition for fatigue as a starting point for discussion: "A multi-dimensional phenomenon in which the biophysiological, cognitive, motivational and emotional state of the body is affected resulting in significant impairment of the individual's ability to ...
Lethargy is a state of tiredness, sleepiness, weariness, fatigue, sluggishness, or lack of energy. It can be accompanied by depression , decreased motivation, or apathy . Lethargy can be a normal response to inadequate sleep, overexertion, overworking, stress, lack of exercise, improper nutrition, drug abuse, boredom , or a symptom of an ...
Under "F48.0 Neurasthenia", the characteristics of the disorder differ among various cultures. Two overlapping symptoms can be present: Increased fatigue after mental exertion can be associated with a reduction in cognitive function. Minimal physical effort might be felt as extreme fatigue along with pain and anxiety.
The Canadian Consensus Criteria require "post exertional malaise and/or [post exertional] fatigue" instead. [21] [22] [23] [19] [24] On the other hand, the older Oxford Criteria lack any mention of PEM, [25] and the Fukuda Criteria consider it optional. Depending on the definition of ME/CFS used, PEM is present in 60 to 100% of ME/CFS patients. [6]
Fatigue, a weariness caused by exertion; Adrenal exhaustion or hypoadrenia, a hypothesized maladaption of the adrenal glands; Heat exhaustion or hyperthermia, a medical condition where the body is unable to control its accumulation of heat; Nervous exhaustion or neurasthenia, a nineteenth-century diagnosis encompassing fatigue, anxiety, and ...
Personal resources, such as status, social support, money, or shelter, may reduce or prevent an employee's emotional exhaustion. According to the Conservation of Resources theory (COR), people strive to obtain, retain and protect their personal resources, either instrumental (for example, money or shelter), social (such as social support or status), or psychological (for example, self-esteem ...
The symptoms of exhaustion disorder include fatigue that does not improve with rest, [11] reduced stress tolerance and various physical symptoms. [12] Some of the more common physical symptoms are headaches, dizziness and bowel issues. Most patients also suffer from sleeping problems. [13]
The term bonk for fatigue is presumably derived from the original meaning "to hit", and dates back at least half a century. Its earliest citation in the Oxford English Dictionary is a 1952 article in the Daily Mail. [8] The term is used colloquially as a noun ("hitting the bonk") and as a verb ("to bonk halfway through the race").